Vikki and Vance's 'death car' and artifacts are on display in the Vikki & Vance's main hall, whereas Whiskey Pete's has an exhibit containing the car and clothing Bonnie and Clyde died in. The Vikki & Vance casino corresponds to Whiskey Pete's Hotel and Casino. Notable similarities include the large outdoor sign featuring a bison/buffalo and the presence of a roller coaster. The Bison Steve casino is based on Buffalo Bill's Resort and Casino.
I'll start with casinos, since you asked about those specifically: The game also contains numerous locations that are parodies of real-world locations. Red Rock Canyon National Conservation Area.Here are places that exist in both the game and the real world:
